9706686 has 32 divisors (see below), whose sum is σ = 21534336. Its totient is φ = 2892000.

The previous prime is 9706681. The next prime is 9706687. The reversal of 9706686 is 6866079.

It is a happy number.

9706686 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9706681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2821 + ... + 5231.

It is an arithmetic number, because the mean of its divisors is an integer number (672948).

Almost surely, 2^9706686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9706686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10767168).

9706686 is an abundant number, since it is smaller than the sum of its proper divisors (11827650).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9706686 is a wasteful number, since it uses less digits than its factorization.

9706686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2488.

The product of its (nonzero) digits is 108864, while the sum is 42.

The square root of 9706686 is about 3115.5554881915. Note that the first 3 decimals coincide. The cubic root of 9706686 is about 213.3161124337.

The spelling of 9706686 in words is "nine million, seven hundred six thousand, six hundred eighty-six".